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Finding the Fourth Proportional to 529,592.70, 730,822.39 and 287,869.06

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Solution

The fourth proportional to 529,592.70, 730,822.39 and 287,869.06 is: 397,250.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,592.70 : 730,822.39 = 287,869.06 : x
  2. Step 2: Convert to fraction form
    529,592.70/730,822.39 = 287,869.06/x
  3. Step 3: Cross multiply
    529,592.70x = 730,822.39 × 287,869.06
  4. Step 4: Simplify right side
    529,592.70x = 210,381,154,436.25
  5. Step 5: Solve for x
    x = 210,381,154,436.25/529,592.70
  6. Step 6: Final answer
    x = 397,250.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.